| 摘要 |
<p>The low thrust cryotechnic propulsion module has a principal propulsion unit (10) and secondary propulsion unit (21,22) controlling altitude. There are two sets of reservoirs (31 to 34) of cryogenic feed, controlled by intermittent pressure controls (71,72,61,62). Firing can be switched intermittently (91,92) at intervals from 30 minutes to 12 hours. There is a heat exchanger with thermal accumulator allowing reheating between consecutive firings.</p> |
